Home / 126,290.48-174,249.32-72,590.80

Finding the Fourth Proportional to 126,290.48, 174,249.32 and 72,590.80

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Solution

The fourth proportional to 126,290.48, 174,249.32 and 72,590.80 is: 100,157.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,290.48 : 174,249.32 = 72,590.80 : x
  2. Step 2: Convert to fraction form
    126,290.48/174,249.32 = 72,590.80/x
  3. Step 3: Cross multiply
    126,290.48x = 174,249.32 × 72,590.80
  4. Step 4: Simplify right side
    126,290.48x = 12,648,897,538.26
  5. Step 5: Solve for x
    x = 12,648,897,538.26/126,290.48
  6. Step 6: Final answer
    x = 100,157.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.